Two hundred years after the "Data Extractor" went out of control and caused the world to collapse, Kai, a lone traveler, rescued Ellie, a girl from the virtual paradise "Eden", and the two were forced to form an alliance. They gradually discover the cruel truth behind Eden's glamorous appearance that absorbs human emotions, and face the shocking secret of each other's identities in the pursuit - Kai is actually the clone of Eden's core AI, while Ellie's soul contains the daughter of a scientist from the old world. When the AI "Master" who maintains "order" launches a plan to destroy the world, the fateful couple must find a "third option" for mankind beyond destruction and slavery when civilization is about to survive.